OnParticleCollision particle position

Hey there,

i've got some trouble. I'd like to know how can i get a particle position in the OnParticleCollision method?

I saw that there is an array : particleEmitter.particles[] BUT, i don't know how to get the id :/

I'm using a particle system to create a continuous laser beam. I'd like to instantiate some spaks each time a particle hit a collider. But i can't find a way to spawn those sparks correctly.

I tried :

HTML:

void OnParticleCollision(GameObject other)
	{
		if(other.gameObject.layer.ToString() != "Bullets")
		{
			//Destroy(other);
			Instantiate(spark, other.transform.position, transform.rotation);
		}
	}

But this piece of code does spawn the at the center of the object...
Any clue?

Regards.

Edit :
Ah! NeverMind i've found a way by casting a ray...